How to keep your food storage safe and fresh

I am working in a nursing home. Sometimes I passed the storage when a kitchen employer opens the storage. The storage is filled-up with foods that to use to cook for the residents and employees that eat their lunches at work. Lightning is very important to see the right food to bring and cook. I am wondering if the maintenance buys their lights from work in warehouse-lightning.com. They have every lightning you need from warehouse to storage.